Periodic minimal surfaces of cubic symmetry

A survey of cubic minimal surfaces is presented, based on the concept of fundamental surface patches and their relation to the asymmetric units of the space groups. The software Surface Evolver has been used to test for stability and to produce graphic displays. Particular emphasis is given to those surfaces that can be generated by a finite piece bounded by straight lines. Some new varieties have been found and a systematic nomenclature is introduced, which provides a symbol (a ‘gene’) for each triply-periodic minimal surface that specifies the surface unambiguously

Packing defects and the width of biopolymer bundles

The formation of bundles composed of actin filaments and cross-linking proteins is an essential process in the maintenance of the cells' cytoskeleton. It has also been recreated by in-vitro experiments, where actin networks are routinely produced to mimic and study the cellular structures. It has long been observed that these bundles seem to have a well defined width distribution, which has not been adequately described theoretically. We propose here that packing defects of the filaments, quenched and random, contribute an effective repulsion that counters the cross-linking adhesion energy and leads to a well defined bundle width. This is a two-dimensional strain-field version of the classic Rayleigh instability of charged droplets

Eksekusi Objek Jaminan Fidusia Berdasarkan Undang-undang Nomor 42 Tahun 1999

Penelitian ini dilakukan dengan tujuan untuk mengetahui bagaimana prosedur eksekusi objek jaminan fidusia dan bagaimana akibat hukum yang akan diterima oleh pihak penerima fidusia yang melakukan eksekusi objek jaminan fidusia tidak berdasarkan ketentuan Perundang-undangan. Dengan menggunakan metode penelitian yuridis normatif, maka disimpulkan: 1. Eksekusi objek jaminan fidusia adalah secara sifat eksekusi (dengan memakai titel eksekutorial), yakni lewat suatu penetapan pengadilan, Secara parate eksekusi, yakni dengan menjual (tanpa perlu penetapan pengadilan) di depan pelelangan umum atau melalui penjualan di bawah tangan dan dijual di bawah tangan oleh pihak kreditor sendiri. 2. Dampak hukum yang diterima oleh pihak kreditur yang melakukan eksekusi tidak berdasarkan ketentuan Perundang-undangan, pertama dapat dikenakan sanksi administratif dari Peraturan Menteri Keuangan. Kedua, dalam rana hukum pidana, dapat dijerat dengan pasal 368 KUHPidana jika penerima fidusia dalam mengeksekusi melakukan pemerasan dan pengancaman. Ketiga, apabila pihak debitur telah membayar sebagian besar kewajibannya, pada saat itu di atas benda objek jaminan fidusia yang dijaminkan telah berdiri sebagian hak dari debitur sehingga ketika pihak kreditur melakukan eksekusi tidak sesuai dengan prosedur maka perbuatan ini dapat dikategorikan perbuatan melawan hukum karena mengakibatkan kerugian terhadap pihak debitur yang dapat dikenakan sanksi dalam pasal 1365 KUHPerdata

Spectroscopy of drums and quantum billiards: perturbative and non-perturbative results

We develop powerful numerical and analytical techniques for the solution of the Helmholtz equation on general domains. We prove two theorems: the first theorem provides an exact formula for the ground state of an arbirtrary membrane, while the second theorem generalizes this result to any excited state of the membrane. We also develop a systematic perturbative scheme which can be used to study the small deformations of a membrane of circular or square shapes. We discuss several applications, obtaining numerical and analytical results.Comment: 29 pages, 12 figures, 7 tabl

Annotation of SBML Models Through Rule-Based Semantic Integration

*Motivation:* The creation of accurate quantitative Systems Biology Markup Language (SBML) models is a time-intensive, manual process often complicated by the many data sources and formats required to annotate even a small and well-scoped model. Ideally, the retrieval and integration of biological knowledge for model annotation should be performed quickly, precisely, and with a minimum of manual effort. Here, we present a method using off-the-shelf semantic web technology which enables this process: the heterogeneous data sources are first syntactically converted into ontologies; these are then aligned to a small domain ontology by applying a rule base. Integrating resources in this way can accommodate multiple formats with different semantics; it provides richly modelled biological knowledge suitable for annotation of SBML models.
*Results:* We demonstrate proof-of-principle for this rule-based mediation with two use cases for SBML model annotation. This was implemented with existing tools, decreasing development time and increasing reusability. This initial work establishes the feasibility of this approach as part of an automated SBML model annotation system.
*Availability:* Detailed information including download and mapping of the ontologies as well as integration results is available from "http://www.cisban.ac.uk/RBM":http://www.cisban.ac.uk/RB

A Wider Lens

Until now, policy makers interested in tackling disadvantage have mainly relied on income poverty as their key measure. This approach, enshrined in the Child Poverty Act 2010, focuses mainly on income poverty, to the exclusion of other disadvantages like poor housing, worklessness and ill health. Recently, this income-based approach has come under growing criticism – in particular from the Field Review on Poverty and Life Chances – which instead advocated multidimensional measures, which provide a fuller picture of disadvantage. This report is the first large-scale analysis of Scottish families’ experiences of multiple disadvantage. Using data from the Scottish Household survey, it provides new analysis to help us understand the scale and nature of disadvantage affecting families in Scotland. This analysis has two key benefits beyond that of providing a more accurate picture. First, it is more easily understood by the public, while complex income-based measures are not. And second, it can contribute to better informed policy from both central and local government by identifying a variety of factors contributing to disadvantage. A Wider Lens is the first phase of a research project on family disadvantage in Scotland. The next stage will use indepth qualitative research techniques (including focus groups, diary-prompted interviews and ethnographic visits to families’ homes) to develop detailed knowledge of the challenges experienced by families suffering from multiple disadvantages, and to develop policy solutions to help overcome them